To reach San Juan/ Isla Verde Arp, Pr in this distance one would set out from Washington, Ia bearing 127.6° or SE and follow the great circles arc to approach San Juan/ Isla Verde Arp, Pr bearing 141&deg or SE .

San Juan/ Isla Verde Arp, Pr has a tropical monsoonal climate (Am) whereas Washington, Ia has a hot summer continental climate with no dry season (Dfa).

San Juan/ Isla Verde Arp, Pr is in or near the subtropical moist forest biome whereas Washington, Ia is in or near the cool temperate moist forest biome.

The average annual temperature is 16.1 °C (29°F) warmer.

Average monthly temperatures vary by 27.2 °C (49°F) less in San Juan/ Isla Verde Arp, Pr. The continentality subtype is truly hyperoceanic as opposed to truly continental.

Total annual precipitation averages 471.3 mm (18.6 in) more which is equivalent to 471.3 l/m² (11.57 US gal/ft²) or 4,713,000 l/ha (503,851 US gal/ac) more. About 1 5/9 as much.

The altitude of the sun at midday is overall 21° higher in San Juan/ Isla Verde Arp, Pr than in Washington, Ia.